A preliminary study on estimating soil thickness on karst dolomite slopes using ground gamma radiation dose rate in Southwest China
文献类型：期刊论文
| 作者 | Zhang, Xinbao3; Yue, Yuemin1,2; Shi, Liang8; Wang, Lu1,2; Yuan, Shuai2,7; Zhang, Xiling2; Sun, Mingming2,7; Zeng, Yi4; Zhang, Yunqi5; Liu, Hongyan6 |
| 刊名 | CATENA
 |
| 出版日期 | 2025-12-01 |
| 卷号 | 260页码:109472 |
| 关键词 | Soil thickness Gamma radiation Dolomite Karst region |
| ISSN号 | 0341-8162 |
| DOI | 10.1016/j.catena.2025.109472 |
| 产权排序 | 4 |
| 文献子类 | Article |
| 英文摘要 | Karst landscapes, which occupy similar to 15 % of the global terrestrial surface, are characterized by shallow, discontinuous soils that strongly influence vegetation dynamics and ecological processes. However, accurately estimating soil thickness in such heterogeneous environments remains a challenge, as existing methods are often labor-intensive, inefficient, or prone to substantial errors. This study introduces a novel approach to estimating soil thickness on karst dolomite slopes using ground gamma radiation measurements. The method is based on the principle that dolomite bedrock contains low concentrations of natural radionuclides, whereas overlying soils are comparatively enriched in radioisotopes, producing higher gamma dose rates. Calibration experiments at 15 depths revealed a positive correlation between soil thickness (y, cm) and gamma dose rate (x, mu Sv/h) within the range of 0-35 cm, from which a power function model was further developed with R-2 of 0.99. Field tests of 18 locations showed average soil thicknesses of 11.22 cm in shrublands and 0.47 cm in grasslands, consistent with results from prior large-scale excavations. This technique offers a simple, non-invasive, and accurate tool for assessing shallow soil distribution in karst regions, with implications for soil mapping, ecological restoration, and land use planning. |
| URL标识 | 查看原文 |
| WOS关键词 | RAY ATTENUATION ; SCIENCE ; DEPTH |
| WOS研究方向 | Geology ; Agriculture ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001578812400001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/217461]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
| 通讯作者 | Yue, Yuemin |
| 作者单位 | 1.Chinese Acad Sci, Guangxi Key Lab Karst Ecol Proc & Serv, Huanjiang Observat & Res Stn Karst Ecosyst, Huanjiang, Peoples R China; 2.Chinese Acad Sci, Inst Subtrop Agr, Changsha, Peoples R China; 3.Chinese Acad Sci, Chengdu Inst Mt Hazards & Environm, Chengdu, Peoples R China; 4.Sichuan Management & Monitoring Ctr Stn Radiat Env, Chengdu, Peoples R China; 5.Sichuan Agr Univ, Coll Forestry, Chengdu, Peoples R China; 6.Peking Univ, Coll Urban & Environm Sci, Beijing, Peoples R China 7.Univ Chinese Acad Sci, Beijing, Peoples R China; 8.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Zhang, Xinbao,Yue, Yuemin,Shi, Liang,et al. A preliminary study on estimating soil thickness on karst dolomite slopes using ground gamma radiation dose rate in Southwest China[J]. CATENA,2025,260:109472. |
| APA | Zhang, Xinbao.,Yue, Yuemin.,Shi, Liang.,Wang, Lu.,Yuan, Shuai.,...&Wang, Kelin.(2025).A preliminary study on estimating soil thickness on karst dolomite slopes using ground gamma radiation dose rate in Southwest China.CATENA,260,109472. |
| MLA | Zhang, Xinbao,et al."A preliminary study on estimating soil thickness on karst dolomite slopes using ground gamma radiation dose rate in Southwest China".CATENA 260(2025):109472. |
入库方式： OAI收割
来源：地理科学与资源研究所
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